Home / 7,659.90-11,494.98-3,278.43

Finding the Fourth Proportional to 7,659.90, 11,494.98 and 3,278.43

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Solution

The fourth proportional to 7,659.90, 11,494.98 and 3,278.43 is: 4,919.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,659.90 : 11,494.98 = 3,278.43 : x
  2. Step 2: Convert to fraction form
    7,659.90/11,494.98 = 3,278.43/x
  3. Step 3: Cross multiply
    7,659.90x = 11,494.98 × 3,278.43
  4. Step 4: Simplify right side
    7,659.90x = 37,685,487.28
  5. Step 5: Solve for x
    x = 37,685,487.28/7,659.90
  6. Step 6: Final answer
    x = 4,919.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.